257
FNCA52 TJSJ 031930
FWFSJU
FIRE WEATHER PLANNING FORECAST FOR PUERTO RICO
NATIONAL WEATHER SERVICE SAN JUAN PR
330 PM AST SUN MAY 3 2026
DISCUSSION
NO FIRE DANGER IS EXPECTED TODAY.
PRZ014-040800-
SOUTHEAST COASTAL PLAINS-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 10 20
TEMP (24H TREND) 73 (-1) 89 (+2) 73 89
RH % (24H TREND) 87 (0) 56 (-4) 87 59
WIND 20FT/EARLY(MPH) E 9 E 17 E 10 E 14
WIND 20FT/LATE(MPH) E 12 SE 16 E 11 SE 13
MIXING HGT(FT-AGL/MSL) 4600 4850
TRANSPORT WND (MPH) SE 17 SE 15
VENT RATE (KT-FT) 69000 63050
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ015-040800-
SOUTHERN HILLS-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 10 10 20
TEMP (24H TREND) 70 (-2) 86 (+3) 69 86
RH % (24H TREND) 92 (+3) 59 (-6) 92 63
WIND 20FT/EARLY(MPH) E 9 E 13 E 9 E 11
WIND 20FT/LATE(MPH) E 11 SE 13 E 9 SE 11
MIXING HGT(FT-AGL/MSL) 5150 5550
TRANSPORT WND (MPH) SE 16 SE 14
VENT RATE (KT-FT) 72100 66600
DISPERSION 5 5
DSI 3 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ016-040800-
NORTH COASTAL PLAINS-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 20 10 40
TEMP (24H TREND) 72 (-2) 91 (+2) 71 91
RH % (24H TREND) 92 (+3) 55 (-4) 92 57
WIND 20FT/EARLY(MPH) SE 11 E 12 SE 11 E 13
WIND 20FT/LATE(MPH) SE 10 E 16 SE 9 E 14
MIXING HGT(FT-AGL/MSL) 5600 5340
TRANSPORT WND (MPH) SE 15 E 13
VENT RATE (KT-FT) 72800 58740
DISPERSION 5 5
DSI 4 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ017-040800-
NORTHERN HILLS-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 20 10 40
TEMP (24H TREND) 70 (-1) 90 (+2) 70 90
RH % (24H TREND) 92 (-1) 54 (-5) 92 58
WIND 20FT/EARLY(MPH) SE 9 E 10 SE 9 E 10
WIND 20FT/LATE(MPH) SE 6 SE 13 SE 5 E 12
MIXING HGT(FT-AGL/MSL) 6230 6050
TRANSPORT WND (MPH) SE 12 E 10
VENT RATE (KT-FT) 62300 54450
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ018-040800-
WEST COAST-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 0 10 0 30
TEMP (24H TREND) 73 (+1) 91 (+1) 73 91
RH % (24H TREND) 89 (-2) 56 (-5) 91 59
WIND 20FT/EARLY(MPH) SE 11 E 16 SE 12 SE 14
WIND 20FT/LATE(MPH) E 10 SE 16 E 10 E 14
MIXING HGT(FT-AGL/MSL) 4430 4820
TRANSPORT WND (MPH) SE 12 E 14
VENT RATE (KT-FT) 44300 57840
DISPERSION 5 5
DSI 4 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ019-040800-
EASTERN INTERIOR-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30 40
TEMP (24H TREND) 71 (-2) 88 (+3) 71 87
RH % (24H TREND) 92 (+3) 60 (-2) 94 62
WIND 20FT/EARLY(MPH) SE 12 SE 12 SE 10 SE 13
WIND 20FT/LATE(MPH) E 12 SE 13 SE 11 SE 13
MIXING HGT(FT-AGL/MSL) 5450 6230
TRANSPORT WND (MPH) SE 17 SE 14
VENT RATE (KT-FT) 81750 74760
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ022-040800-
LUQUILLO MOUNTAIN RANGE-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY MCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 30 50 60
TEMP (24H TREND) 70 (-1) 83 (+3) 70 83
RH % (24H TREND) 96 (+3) 66 (-5) 96 67
WIND 20FT/EARLY(MPH) E 10 SE 11 SE 8 SE 12
WIND 20FT/LATE(MPH) E 10 SE 12 SE 9 SE 12
MIXING HGT(FT-AGL/MSL) 4460 4450
TRANSPORT WND (MPH) SE 18 SE 16
VENT RATE (KT-FT) 71360 62300
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ023-040800-
CENTRAL MOUNTAIN RANGE-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE SHOWERS NONE SHOWERS
CHANCE PRECIP (%) 0 10 0 30
TEMP (24H TREND) 67 (-2) 88 (+6) 67 87
RH % (24H TREND) 93 (0) 57 (-9) 93 62
WIND 20FT/EARLY(MPH) SE 6 SE 11 SE 8 SE 10
WIND 20FT/LATE(MPH) E 5 SE 11 SE 6 SE 9
MIXING HGT(FT-AGL/MSL) 6280 6880
TRANSPORT WND (MPH) SE 13 SE 9
VENT RATE (KT-FT) 69080 55040
DISPERSION 5 5
DSI 2 6 2 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ024-040800-
CAYEY MOUNTAIN RANGE-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY MCLEAR PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 30 20 30 30
TEMP (24H TREND) 70 (-1) 83 (+3) 70 82
RH % (24H TREND) 94 (+2) 65 (-3) 95 69
WIND 20FT/EARLY(MPH) E 6 E 11 SE 8 E 10
WIND 20FT/LATE(MPH) E 10 SE 11 E 8 SE 10
MIXING HGT(FT-AGL/MSL) 4840 5200
TRANSPORT WND (MPH) SE 18 SE 15
VENT RATE (KT-FT) 77440 67600
DISPERSION 5 5
DSI 3 6 3 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ025-040800-
VIEQUES-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50 50
TEMP (24H TREND) 76 (0) 87 (+1) 76 87
RH % (24H TREND) 85 (0) 61 (0) 85 61
WIND 20FT/EARLY(MPH) E 14 E 14 E 13 SE 14
WIND 20FT/LATE(MPH) E 16 SE 13 E 13 SE 14
MIXING HGT(FT-AGL/MSL) 3340 3020
TRANSPORT WND (MPH) E 18 SE 14
VENT RATE (KT-FT) 53440 36240
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ026-040800-
CULEBRA-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER PCLDY PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 20 30 50 50
TEMP (24H TREND) 77 (0) 89 (+2) 77 89
RH % (24H TREND) 84 (-3) 61 (-2) 85 60
WIND 20FT/EARLY(MPH) E 14 E 14 E 13 SE 16
WIND 20FT/LATE(MPH) E 14 SE 13 E 13 SE 16
MIXING HGT(FT-AGL/MSL) 3390 3260
TRANSPORT WND (MPH) SE 20 SE 17
VENT RATE (KT-FT) 57630 48900
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
PRZ027-040800-
SOUTHWEST COASTAL PLAINS AND MONA ISLAND-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER CLEAR MCLEAR MCLEAR MCLEAR
PRECIP TYPE NONE NONE NONE SHOWERS
CHANCE PRECIP (%) 0 0 0 10
TEMP (24H TREND) 73 (-1) 91 (+2) 74 91
RH % (24H TREND) 88 (+2) 53 (-5) 87 55
WIND 20FT/EARLY(MPH) E 14 E 20 E 17 E 18
WIND 20FT/LATE(MPH) E 13 SE 20 E 13 SE 18
MIXING HGT(FT-AGL/MSL) 4540 4880
TRANSPORT WND (MPH) SE 21 E 16
VENT RATE (KT-FT) 81720 68320
DISPERSION 5 5
DSI 5 6 5 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ001-040800-
SAINT THOMAS AND SAINT JOHN-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 30 30
TEMP (24H TREND) 75 (0) 86 (+1) 75 86
RH % (24H TREND) 90 (-2) 63 (-2) 94 62
WIND 20FT/EARLY(MPH) E 13 E 16 E 13 E 18
WIND 20FT/LATE(MPH) E 14 E 14 E 13 SE 17
MIXING HGT(FT-AGL/MSL) 3490 3300
TRANSPORT WND (MPH) E 21 SE 17
VENT RATE (KT-FT) 62820 49500
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
VIZ002-040800-
ST CROIX-
330 PM AST SUN MAY 3 2026
TONIGHT MON MON NIGHT TUE
CLOUD COVER MCLEAR PCLDY PCLDY PCLDY
PRECIP TYPE SHOWERS SHOWERS SHOWERS SHOWERS
CHANCE PRECIP (%) 10 30 30 30
TEMP (24H TREND) 76 (-1) 87 (+1) 76 87
RH % (24H TREND) 87 (+2) 63 (-1) 87 63
WIND 20FT/EARLY(MPH) E 14 E 16 E 13 E 17
WIND 20FT/LATE(MPH) E 14 E 13 E 13 SE 16
MIXING HGT(FT-AGL/MSL) 4250 4030
TRANSPORT WND (MPH) SE 18 SE 18
VENT RATE (KT-FT) 68000 64480
DISPERSION 5 5
DSI 6 6 6 6
RH RECOVERY EXCELLENT EXCELLENT
REMARKS...NONE.
CLICK HERE TO GO TO PREVIOUS BULLETINS.
Main Text Page